Meet the GECA team

Kate Harris

Kate Harris

  • Chief Executive Officer
    • Kate brings to GECA an extensive background in leadership, capacity building and education aimed at finding sustainable solutions for the future. She is on the Board of Directors of the Living Future Institute of Australia and of the Centre for Sustainability Leadership (CSL), has a Masters in Social Ecology and is a graduate of the Asialink Leaders Program. Is also the founder of consulting firm Future Ready. Kate believes passionately in human potential and draws on her diverse experience in the performing arts, executive coaching, cultural change and organisational development, helping individuals, organisations and communities to create a better future. She has held a variety of management, organisational and coaching roles, and has been an ambassador for 1 Million Women and on the Advisory Board for Pollinate Energy.

Shaila Divakarla

Shaila Divakarla

  • Standards & Technical Manager
    • Shaila is a registered architect holding a Ph.D. in sustainable architecture and more than 10 years of experience in the industry/practice combined with teaching/tutoring experience as well. Shaila is also a Green Star Accredited Professional (GSAP), Greensmart professional and an accredited NatHERS/BASIX assessor. Her work has spanned across design, research, project coordination and education/training. Her passion for sustainability is supported by a proven track record in championing sustainable project housing highlighted by her crucial role in the recent Ecoliving Display Village, which was the recipient of state and national awards.

Kim Andrews

Kim Andrews

  • Sustainable Development & Senior Accounts Representative
    • Kim represents GECA licensees and advocates for the uptake of sustainable products across multiple industries. She is also responsible for increasing the available range of GECA certified sustainable products and services by reaching out to manufacturers and encouraging certification. Kim has a background in sustainable materials and design with a focus on International Law and human rights in the materials industry. Before coming to GECA, she spent 14 years working with the University of New South Wales as Design Coordinator for UNSW Foundation Studies, and has volunteered with Sustainable Business Australia as Manager of Safe & Sustainable Materials. Kim is GRI trained, holds Masters qualifications in Design (UTS) and completed International Law and International Relations (UNSW), Environmental Management Cert IV and Sustainability and Climate Change Law (UNU Tokyo). Kim has worked from the bottom up and the top down and is working to create greater change in the middle.

Sarah Sannen

Sarah Sannen

  • Office & Administration Manager
    • Sarah supports the GECA team by keeping the office functions running smoothly, managing general finances and ensuring that GECA’s administration systems are first class. She is the main point of contact for all licensees and helps make sure their audits are continually progressing. Sarah holds a double degree in economics and arts, with an environmental humanities focus, and believes the private sector holds the key to resolving the current environmental issues the modern world is facing. She brings a diverse background in various customer-facing roles to GECA, having worked as a dance instructor, sales assistant, office manager and in the hospitality industry.

Paula Clasby

Paula Clasby

  • Marketing Manager
    • Paula is a marketing professional with extensive experience in business strategy, communication and project management. With over 20 years in various roles in corporate health and safety to print and creative business solutions, that involved delivering creative direction and marketing management. Her interest in health and environmental issues saw Paula working in corporate health for ten years, in a mix of management, marketing and editorial roles and playing an integral part in corporate health change. Paula draws on her skills and strong interest in environmental and health issues to market GECA’s vision for a society in which people demand sustainable products and services.

Emma Berthold

Emma Berthold

  • Communications Officer
    • Emma is a communications and marketing professional who gives GECA a voice, both in print and online. She specialises in writing and delivering engaging content that promotes GECA’s vision of a society where consumers demand more sustainable products and services. Emma has a background in content creation and draws on her previous experience working for an online marketing agency to enhance GECA’s presence on the web. As well as holding a master’s degree in Media Practice, Emma is a science enthusiast who majored in biological science for her bachelor’s degree. Her interest in environmental conservation and human rights issues is what drives her to improve consumption habits in society.

Matthew Kolisnyk

Matthew Kolisnyk

  • Standards & Technical Officer
    • Matthew brings a passion for sustainability and experience working with a variety of non-government organisations, as well as qualifications in sustainability studies and earth science, to the standards team at GECA. He conducts in-depth research to contribute towards developing GECA’s standards and handles claims validation. Matthew has also worked extensively with WWF to develop a working plan to reduce food waste in Australia, with Good On You to verify clothing companies’ sustainability claims, and with WorldTeach to manage projects and teach English to students in Micronesia. He has seen first-hand the negative impacts that our actions can have on the environment and human health, and returned from his work overseas with a passion to promote sustainable living in Australia.

Katrin Thommes

Katrin Thommes

  • Standards & Technical Officer
    • Katrin is GECA's resident scientist. With a Masters of Environmental Science and a Doctorate under her belt she is well-placed to steer GECA's standards towards robust and environmentally sound goals. Kat represents Germany in the office and brings her European knowledge of standards to the team. She has also participated in the Green Steps sustainability program and gained diving and reef monitoring experience through completing a course in biological survey techniques. Kat has contributed as both a research assistant and a casual lecturer to the environmental department at Macquarie University.

email the GECA team

Phone the GECA team on 02 9699 2850